\begin{tikzpicture}
    \begin{scope}
        \tkzDefPoints{0/0/B,  4/0/C,  3.5/2/A}
        \tkzDrawPolygon(A,B,C)
        \tkzLabelPoints[above](A)
        \tkzLabelPoints[left](B)
        \tkzLabelPoints[right](C)
    \end{scope}

    \begin{scope}[xshift=6cm]
        \tkzDefPoints{0/0/B',  4/0/C', 3.5/2/A'}
        \tkzDrawPolygons(A',B',C')
        \tkzCompass(B',A')
        \tkzCompass(C',A')
        \tkzLabelPoints[above,xshift=0.3em](A')
        \tkzLabelPoints[left](B')
        \tkzLabelPoints[right](C')
    \end{scope}
\end{tikzpicture}

